science

When Were Gravitational Waves First Detected?

šŸ’” The Answer

  • The first direct detection happened on September 14, 2015, by LIGO.
  • The signal came from two merging black holes 1.3 billion light-years away.
  • Gravitational waves are ripples in spacetime predicted by Einstein in 1916.
  • This discovery earned the 2017 Nobel Prize in Physics for LIGO's founders.

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